Public Profile
grainis
Author of Popular-Science Articles, Texts, Books, R&D Projects (Hydrogen and H2-Hybrid Clean Fuels & Systems as Generators, H2-Engines, Gas-Turbines, Gas-Electric Cars and else Vehicles, Power Plants, Fuel Refineries, Drones, Aerospace, etc.) in Bulgarian, English, Russian -- https://fuels.alle.bg , graiis@abv.bg
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